is there anything i can do for a nerve exposed on my tooth i am 22?

i do not have any insurance for dental. i would like to know if i can do anything at home for the time being.
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Having a fear of dentists and their prices I have two nerves exposed in my mouth! I use ambesol and a temporary filling I bought at CVS or Walgreens or any drug store. I swish my mouth with warm salt water twice per day (morning and night) when I brush and It helps. I've also swished with warm Capt' Morgan once in awhile if it really hurts bad and that helps! You can also rub a Bayer children's aspirin (small orange chewable pill)on the sore tooth to make the pain go away! Good Luck!
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